Combustible Dust Testing

Laboratory testing to quantify dust explosion and reactivity hazards

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Gas and Vapor

Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Classification of hazardous materials subject to shipping and storage regulations
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Thermal Stability

Safe storage or processing requires an understanding of the possible hazards associated with sensitivity to variations in temperature

Adiabatic Calorimetry
Data demonstrate the consequences of process upsets, such as failed equipment or improper procedures, and guide mitigation strategies including Emergency Relief System (ERS) design
Reaction Calorimetry
Data yield heat and gas removal requirements to control the desired process chemistry
Battery Safety

Testing to support safe design of batteries and electrical power backup facilities particularly to satisfy UL9540a ed.4

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Cable Testing
Evaluate electrical cables to demonstrate reliability and identify defects or degradation
Equipment Qualification (EQ)
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Water Hammer
Analysis and testing to identify and prevent unwanted hydraulic pressure transients in process piping
Acoustic Vibration
Identify and eliminate potential sources of unwanted vibration in piping and structural systems
Gas & Air Intrusion
Analysis and testing to identify and prevent intrusion of gas or air in piping systems
ISO/IEC 17025:2017

Fauske & Associates fulfills the requirements of ISO/IEC 17025:2017 in the field of Testing

ISO 9001:2015
Fauske & Associates fulfills the requirements of ISO 9001:2015
Dust Hazards Analysis
Evaluate your process to identify combustible dust hazards and perform dust explosion testing
On-Site Risk Management
On-site safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up
DIERS Methodology
Design emergency pressure relief systems to mitigate the consequences of unwanted chemical reactivity and account for two-phase flow using the right tools and methods
Deflagrations (Dust/Vapor/Gas)

Properly size pressure relief vents to protect your processes from dust, vapor, and gas explosions

Effluent Handling

Pressure relief sizing is just the first step and it is critical to safely handle the effluent discharge from an overpressure event

FATE™ & Facility Modeling

FATE (Facility Flow, Aerosol, Thermal, and Explosion) is a flexible, fast-running code developed and maintained by Fauske and Associates under an ASME NQA-1 compliant QA program.

Mechanical, Piping, and Electrical
Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid, flow, and electric power systems
Hydrogen Safety
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Thermal Hydraulics
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Nuclear Safety
Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant
Radioactive Waste
Safety analysis to underpin decomissioning process at facilities which have produced or used radioactive nuclear materials
Adiabatic Safety Calorimeters (ARSST and VSP2)

Low thermal inertial adiabatic calorimeters specially designed to provide directly scalable data that are critical to safe process design

Other Lab Equipment and Parts for the DSC/ARC/ARSST/VSP2 Calorimeters

Products and equipment for the process safety or process development laboratory


Software for emergency relief system design to ensure safe processing of reactive chemicals, including consideration of two-phase flow and runaway chemical reactions


Facility modeling software mechanistically tracks transport of heat, gasses, vapors, and aerosols for safety analysis of multi-room facilities


Our highly experienced team keeps you up-to-date on the latest process safety developments.

Process Safety Newsletter

Stay informed with our quarterly Process Safety Newsletters sharing topical articles and practical advice.


With over 40 years of industry expertise, we have a wealth of process safety knowledge to share.

Recent Posts

Efficient On-Line Testing of Electrical Cables Using LIRA®

Posted by Fauske & Associates on 01.21.15
Electrical cables are the lifeblood for any industrial facility, from chemical and petrochemical plants to Figure 1: LIRA® testing of an underground electrical transmission circuitfossil and nuclear power generating plants. Understanding the condition of these cables, and
identifying potential issues - is essential to keeping plants up and running and avoiding costly down time. In order to understand a cable's condition, several parts of the cable need to be evaluated.
The key component of a cable’s construction is the insulation material which isolates the conductor from its surroundings.  The jacket of the cable provides physical protection during and after installation.  We notice that a simple internet search of cable aging, cable fault, cable failure, cable damage and so forth, does not yield a great deal of information on highly efficient test methods such as LIne Resonance Analysis (LIRA®). 
There are several cable test methods available to evaluate cable performance.  This cable condition monitoring test is unique in that it not only provides an indication of overall cable health, but also locates degraded areas.  A non-destructive examination tool that does not over-stress the cable; it uses a relatively small 5 volt peak-to-peak (Vpp) signal to perform its evaluation.   It performs both global and local assessments of the test cable.  Importantly, the test cable does not need to be disconnected and testing is completed in minutes.  Leaving the cable connected eliminates a potential problem source: the cable termination.

How Does It Work?

LIRA transmits a frequency modulated wave through the insulation material of the test cable. The impedance spectrum, phase, and amplitude of the returning frequency are analyzed to establish the overall health of the cable and identify locations where it has been locally degraded.  With this information, local repairs can be made, rather than replacing the entire cable.
In addition to localized insulation damage, it also provides an overall assessment of the cable’s global condition. This parameter, LIRA Delta-G (LDG), is establishing itself as a measurement that provides an indication of the cable’s global health. This information can be used to estimate the life expectancy of the cable and to plan for its replacement.

What Do You Need to Use It?

Testing a cable with LIRA is quick and easy. All that is needed is for the cable to be de-energized (it does not need to be de-coupled) and connection of the two LIRA test leads to two metal cores of the cable (for example, two conductors or one conductor and a shield). Depending upon the length of the cable under test, a typical test will take about three minutes. This test provides both a global assessment of the cable along with a localized assessment of cable degradation areas (if any).

Give Me An Example

The following is an example test result.  A 150 feet (46 meters) long, low voltage two conductor cable was tested with it. This cable was located close to a high temperature heat source and sustained thermal damage to the cable insulation at 71 feet (22 meters).  One of the key output plots is called the LIRA Signature plot, which is a normalized graph to account for attenuation effects (increasing with the signal frequency). The Signature plot for this example is shown in Figure 2.
LIRA_PlotFigure 2: LIRA Signature Plot – Thermally stressed cable

The abscissa (x-axis) of this signature plot shows cable length with the test leads connected at the origin.  The  test signal gain is shown on the ordinate (y-axis).  The gain represents the power ratio (given in decibels) between the reflected and incident wave at each cable location.  The magnitude of the test signal provides information about potential issues to which the cable has been exposed.  Typically, signature signals above an established threshold identify areas to be investigated.  These signatures can indicate splices or insulation-degraded areas.  For all LIRA tests there are peak values associated with the signal passing through the cable at the entry and exit points. As shown in Figure 2, a signal spike occurs at 71 feet, which corresponds to the location where thermal damage was identified.
For additional information on LIRA as well as other cable testing methods, please email, 630-323-8750
LIRA® is a product and registered trademark of Wirescan AS

Topics: Nuclear


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